package com.atguigu.day01.homework;

public class HomeWork4{
    public static void main(String[] args){
        final double PI = 3.14;
        double radius1 = 1.2;
        double radius2 = 2.5;
        int radius3 = 6;
        System.out.println("radius1的半径为：" + radius1 + ",radius1的面积为：" + PI * radius1 * radius1);
        System.out.println("radius2的半径为：" + radius2 + ",radius2的面积为：" + PI * radius2 * radius2);
        System.out.println("radius3的半径为：" + radius3 + ",radius3的面积为：" + PI * radius3 * radius3);
    }
}